Single payer systems negotiate as one. US insurers negotiate as separate entities, so you'll get a better rate with single-payer as its a more powerful negotiat

Single payer systems negotiate as one. US insurers negotiate as separate entities, so you'll get a better rate with single-payer as its a more powerful negotiator, have less waste, and better outcomes. Why Trump supporters think they can have the benefits of single-payer while attacking it and proposing a ridiculous healthcare bill is beyond me.